2130564 has 24 divisors (see below), whose sum is σ = 5088160. Its totient is φ = 693504.

The previous prime is 2130539. The next prime is 2130577. The reversal of 2130564 is 4650312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2130564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1549 + ... + 2580.

2^2130564 is an apocalyptic number.

It is an amenable number.

2130564 is an abundant number, since it is smaller than the sum of its proper divisors (2957596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130564 is a wasteful number, since it uses less digits than its factorization.

2130564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2130564 is about 1459.6451623597. The cubic root of 2130564 is about 128.6761904530.

Adding to 2130564 its reverse (4650312), we get a palindrome (6780876).

The spelling of 2130564 in words is "two million, one hundred thirty thousand, five hundred sixty-four".